Bulgaria Air (FB, Sofia) has leased another ex-Delta Air Lines (DL/Atlanta) B737-300 and has launched and announced several new routes: Bourgas-Varna-Madrid: weekly B737-300 service (already launched)Sofia-Alicante: weekly B737-500 service (already launched) Sofia-Dublin: 2x weekly B737-500 service starting on October 5 Hemus Air (DU/Sofia) and Air One (AP/Rome Fiumicino) are the only remaining bidders for the sale of government owned Bulgaria Air.